I just got a can of Free All after discovering it existed by your post earlier this week Grumpy.
The drum is so incredibly thin at the center, I’d bet it’s no thicker then 2 pennies stacked, just 2 or 3 threads around. The first side came off with the 2 screws, the other side wasn’t right from the start. I doubt very much retapping the holes would work so I won’t even try. I thought usually the shoes hold the drum but backing off the adjustment wheel moved the shoes in but nothing more.
Where or what usually holds the drum on? Can rust between the drum and the hub do it still after spraying penetrating oil around the stud bolts?